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Antistatic reinforced polyphenylene sulfide composite material and method for making same

A technology of polyphenylene sulfide and composite materials, which is applied in the direction of chemical instruments and methods, and other chemical processes, can solve the problems of volume resistivity decline of composite materials, achieve low cost, durable antistatic properties, and improve processing performance.

Active Publication Date: 2008-03-05
GUANGDONG SILVER AGE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are shared electron pairs on the ether oxygen atoms in the molecular chains of hydrophilic polymers such as polyethylene oxide, polyethylene glycol and their maleate derivatives, which have a strong tendency to form hydrogen bonds; alkali metal ions can share with The electron pairs coordinate to form an association complex and form a conductive path with the migration of the polyelectrolyte in the polyphenylene sulfide. The higher the content of alkali metal ions, the greater the probability of forming an effective conductive path, so that the volume resistivity of the composite material Significantly decreased, but the alkali metal salt content is too high and easy to precipitate
The thermal decomposition temperature of this kind of hydrophilic polymer is about 400 ℃, and the thermal stability is good. There are already patents on the non-ionic polyelectrolyte of polyethylene oxide, polyethylene glycol and alkali metal salt complexes used in nylon 6 antistatic reported, but antistatic for polyphenylene sulfide and its glass fiber reinforced composites has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 300 parts of polyphenylene sulfide, 5 parts of lithium chloride, 40 parts of polyethylene oxide, 550 parts of glass fiber, 90 parts of sulfonated styrene-butadiene-styrene copolymer, 9 parts of aluminate coupling agent, After 2 parts of antioxidant 1010 and 4 parts of processing aid are dispersed and mixed by a high-speed mixer, they are melted, kneaded, extruded, cooled, dried, pelletized and packaged by a twin-screw extruder. The volume resistivity of the obtained composite material is 4.1×10 9 Ω.cm

[0021] The speed of the high-speed mixer is 2000r / min, and the mixing time is 5-30min. The temperature of each zone of the twin-screw extruder used is kept at 280-340°C, the speed of the main machine is 100r / min, and the speed of feeding is 40r / min. Cooled with water and dried with hot air at 120°C. After the extruded product is fully dried, use an injection molding machine to inject and mold it into a test standard sample according to the standard size. The injection...

Embodiment 2

[0023] 300 parts of polyphenylene sulfide, 5 parts of potassium chloride, 40 parts of polyethylene glycol bismaleate, 300 parts of glass fiber, 250 parts of calcium carbonate, 90 parts of methyl methacrylate-butadiene-styrene The copolymer, 9 parts of KH550, 2 parts of B215, and 4 parts of processing aid are dispersed and mixed by a high-speed mixer, melted, kneaded, extruded, cooled, dried, pelletized and packaged by a twin-screw extruder. The volume resistivity of the obtained composite material is 6.5×10 9 Ω.cm

Embodiment 3

[0025] 800 parts of polyphenylene sulfide, 5 parts of sodium bromide, 40 parts of polyethylene glycol, 100 parts of glass fiber, 45 parts of styrene-butadiene-maleic anhydride copolymer, 5 parts of butyl titanate, 2 parts B215, 3 parts of processing aids are dispersed and mixed by a high-speed mixer, melted, kneaded, extruded, cooled, dried, pelletized and packaged by a twin-screw extruder. The volume resistivity of the obtained composite material is 3.2×10 9 Ω.cm.

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PUM

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Abstract

The present invention discloses antistatic reinforced polyphenyl thioether composite material and its preparation process. The composite material consists of polyphenyl thioether 30-80 weight portions, glass fiber 20-60 weight portions, inorganic mineral filler 0-40 weight portions, hydrophilic polymer 3-10 weight portions, alkali metal salt 0.2-3 weight portions, interface modifier 2-10 weight portions, coupling agent 0.1-2 weight portions, antioxidant 0.1-1 weight portion, and processing aid 0.1-1 weight portion. The antistatic reinforced polyphenyl thioether composite material has excellent mechanism performance, excellent antistatic performance and high durability, and may be used in coal mine machine, business machine, fixed disk driver, etc.

Description

technical field [0001] The invention relates to an antistatic reinforced polyphenylene sulfide composite material and a preparation method thereof. Background technique [0002] Polyphenylene sulfide (PPS), also known as polyphenylene sulfide and polyphenylene sulfide, is a sulfur-containing aromatic polymer with a structural formula of , the sulfur atoms and benzene rings on the main chain of the molecule are neatly arranged alternately, which endows the molecule with highly stable chemical bond characteristics, and is easy to accumulate into a crystal lattice structure with high thermal stability, which makes it have many unique properties. The melting point is as high as 280-290 °C, the decomposition temperature is greater than 400 °C, almost insoluble in any solvent below 200 °C, the long-term continuous use temperature is 200-240 °C, low hygroscopicity, no deformation under high temperature and high humidity conditions and can maintain excellent electrical insulation, ...

Claims

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Application Information

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IPC IPC(8): C08L81/02C08K7/14C09K3/16B29C47/40B29B9/12C08L71/02C08L53/02C08K3/00C08K5/521B29C48/40
CPCB29C48/40
Inventor 谭颂斌傅轶
Owner GUANGDONG SILVER AGE SCI & TECH CO LTD
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